Device for removing gum from cutters of tobacco-stripping machines.



M. DEILLER. DEVICE FOR REMOVING GUM FROM GUTTERS 0F TOBACCO STRIPPINGMACHINES. APPLICATION FILED MAILZS, 1912.

1,046,994, Patented Dec. 10, 1912.

I; ammni'oz M W UNITED STATES PATENT OFFICE.

MARTIN DEILLER, OF NEWARK, NEW JERSEY, AS SIGNOR TO UNIVERSAL TOBACCOMACHINE COMPANY, A CORPORATION OF NEW YORK.

Specification of Letters Patent.

Patented Dec. 10, 1912.

Application filed March 28, 1912. Serial No. 686,719.

To all whom it may concern:

Be it known that I, MARTIN DEILLER, a citizen of the United States,residing at Newark, in the county of Essex and State of New Jersey, haveinvented a certain new and useful Improvement in Devices for BemovingGum from Cutters of Tobacco- Stripping Machines, of which the followingis a specification.

In U. S. Letters Patent No. 985,984, granted to myself and Eugene M.Deiller, March 7 1911, we have disclosed a tobacco stripping and bookingmachine embodying a rotary cutter for cutting out the stems of thetobacco leaves, which comprises a toothed disk, the forward or cuttingfaces of the teeth of which are curved eccentric to the axis ofrotation. Upon the sides of said disk are secured thin steel blades ofthe same shape, and for a considerable distance back from the point ofeach tooth said disk is grooved to fit against the stem of the tobaccoleaf. When in operation, this cutter projects between sharpenedprojecting flanges on the drum sections upon which the leaves arereceived and booked. The leaf is fed so that the stem comes between thegrooved edge of the cutter and the space between said flanges, so thatthe cutter thus severs the leaf along each side of the stem, and forcesthe stripped stem down between the drum sections, whence it may fallfrom the machine. I have found in the practical operation of this cutterthat after a certain amount of usage the blades fail to make a cleancut. I have discovered that this is due to gum pressed from the leavesby the action of the cutter teeth, which gum becomes packed hard in andfinally fills the cutter groove.

My present invention provides for the removal of this gum as fast as itforms, and so maintains the cutting efiiciency of the blades.

In the accompanying drawings Figure 1 is a sectional view of a preferredform of my device on the line w, m of Fig. 2, Fig. 2 is a top, and Fig.3 a side elevation of the same. Fig. 4 shows separately the fixed fingerfor clearing the guide groove on the roller over which the stem passesto the cutter, which finger, as hereinafter explained, may be mounted onthe support for my gum removing device, Fig. 5 is a sectional view of amodified form of my said device, and Fig. 6 shows the plow point of thegum removing arm.

Similar numbers of reference indicate like parts, and parts in mypresent drawing which are identical with parts shown in the drawings ofaforesaid Patent No. 985,984 are similarly numbered.

Fast upon the rotary shaft 25 is the cutter 26 which works between theannular flanges 21, 22 of the drum. Said cutter comprises the tootheddisk 27, to the sides of which are secured thin steel blades 28, 29 ofthe same shape as the cutter disk. For a considerable distance back fromthe point of each tooth the disk 27 is grooved, as at 271. dotted lines,to fit against the stem of the tobacco leaf. As the cutter rotates, theblades shear against the sharpened projecting flanges 21, 22, and soseverthe leaf fed thereto on each side of the stem.

At 81 are shown the belts which engage the leaves, in the manner fullyexplained in the aforesaid patent.

38 is the belt roller, having at its middle portion the groove 64, whichgroove receives the stem to bring it into alinement with the rotarycutter directly behind and to guide it to said cutter.

65 is a scraping finger which projects into said groove and is carriedby a collar 66 fast on a fixed shaft 67 All of the aforesaid parts areshown and described in said Patent No. 985,984.

In the preferable arrangement of my present device shown in Figs. 1, 2and 3, I form, preferably integrally with the collar 66, a sleeve A, inthe bore of which is disposed a rod B, having a fixed collar or e11-largement C, between which and a shoulder in said bore is interposed ahelical spring D. The upper portion of the sleeve is longitudinallyslotted to receive guide pins E proj ecting from rod B. The spring Dholds the lower extremity of rod B in the groove of the cutter disk 27so that the end of the rod makes contact with the said disk. On saidextremity is formed a plow point, as shown at N, Fig. 6. When the cutterrotates in the direction of the arrow 1, said point removes the gum asfast as it is formed, the spring D permitting the rod to movelongitudinally in the sleeve A and so maintain constant contact with thedisk. The collar we. M

' 66, I may provide a second sleeve G to receive the shank of the finger65, which is made adjustable therein and clamped by the set screws H. Bythis arrangement the collar 66 may first be turned on fixed shaft 67 togive to sleeve A the proper inclination and clamped by the set screws F.The finger 65 may then be adjusted in its sleeve with reference to thegroove in roller 38 and secured by screws H.

Instead of the form of my device shown in Figs. 1, 2 and 3, I may employthe form shown in Fig. 5. The collar 66 here is made with a recess toreceive the leaf spring I, through which spring loosely passes the screwK which enters said collar. Above spring I and between said spring andthe screw head is a helical spring L. The extremity of spring I entersthe groove in the cutter and operates to remove the gum therefrom asfast as the same is deposited. Owing to the rapid rotation and eccentricshape of said cutter, the spring I is subject to very frequent shockswhich in time, if the spring is rigidly clamped in place, are apt tocrystallize the metal of the spring and so determine its breakage. Thesecond or helical spring L takes up these-vibrations, and so preventsthis difliculty. In this arrangement, the finger 65 may be a steelblade, secured in any suitable way to a downward projection M on thecollar. The elasticity of spring I permits of suitable adjustment offinger 65 to groove 64, while at the same time maintaining its owncontact with the cutter. The bottom of the recess in collar 66 is madeconvex, as shown at 0, Fig. 5, so that the spring I may freely rockthereon.

I claim:

1. In combination with the rotary eccen trically toothed cutter of atobacco stripping machine, said cutter having a groove in its edge, andmeans for continuously removing from said groove gum deposited in saidgroove from said leaves during the operation of said cutter.

2. In'combination with the rotary eccentrically toothed cutter of atobacco stripping machine, said cutter having agroove in its edge, aresilient arm entering said groove and bearing at its end on saidcutter, and means for supporting said arm.

3. In combination with the rotary eccentrically toothed cutter of atobacco stripping machine, said cutter having a groove in its edge, anarm entering said groove, a spring bearing on said arm to hold the sameagainst said cutter, and means for supporting said arm.

4:. In combination with the rotary eccentrically toothed cutter of atobacco stripping machine, said cutter having a groove in its edge, asleeve, a support therefor, a rod longitudinally movable in said sleeveand entering said groove, and a spring in said sleeve and bearing onsaid rod to hold the same against said cutter.

5. In combination with the rotary eccentrically toothed cutter of atobacco stripping machine, said cutter having a groove in its edge, atransverse fixed shaft, a collar rotatable thereon, means for clampingsaid collar in position, a sleeve on said collar, a rod longitudinallymovable in said sleeve and entering said cutter groove, and a spring insaid sleeve and bearing on said rod to hold the same against saidcutter.

6. In combination with the rotary eccentrically bladed cutter and feedroll of a to bacco stripping machine, the said cutter having a groove inits edge and the said feed roll having a circumferential groove disposedin front of said cutter groove, a t ansverse fixed shaft, a collarrotatable thereon, means for clamping said collar in position on saidshaft, a finger secured to said collar and entering said roll groove,and a resilient arm 011 said collar entering said cutter groove andbearing at its end on said cutter.

7. In combination with the rotary eccentrically bladed cutter and feedroll of a to bacco stripping machine, the said cutter having a groove inits edge and the said feed roll having a circumferential groove disposedin front of said cutter groove, a transverse fixed shaft, a collarrotatable thereon, means for clamping said collar in position on saidshaft, two sleeves on opposite sides of said collar, a fingerlongitudinally adjustable in one of said sleeves and entering said rollgroove, a rod longitudinally movable in the other sleeve, and a springin said last-named sleeve and bearing on said rod to hold the sameagainst said cutter.

In testimony whereof I have aflixed my signature in presence of twowitnesses.

MARTIN DEILLER.

Gopiesof this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

. Washington, D. G.

